if (document.images) {
home = new Image;
books = new Image;
bookplates = new Image;
maps = new Image;
chung = new Image;
manuscripts = new Image;
photographs = new Image;
digital = new Image;
home.src= '\/spcoll\/graphics\/home.gif';
books.src = '\/spcoll\/graphics\/books.gif';
bookplates.src = '\/spcoll\/graphics\/bookplates.gif';
maps.src = '\/spcoll\/graphics\/maps.gif';
chung.src = '\/spcoll\/graphics\/chung.gif';
manuscripts.src = '\/spcoll\/graphics\/manuscripts.gif';
photographs.src = '\/spcoll\/graphics\/photographs.gif';
digital.src = '\/spcoll\/graphics\/digital.gif';
} else {
home = '';
books = '';
bookplates = '';
maps = '';
chung = '';
manuscripts = '';
photograps = '';
digital = '';
document.rollimg = '';
}